EP2360031A1 - Roller system - Google Patents

Roller system Download PDF

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Publication number
EP2360031A1
EP2360031A1 EP10001745A EP10001745A EP2360031A1 EP 2360031 A1 EP2360031 A1 EP 2360031A1 EP 10001745 A EP10001745 A EP 10001745A EP 10001745 A EP10001745 A EP 10001745A EP 2360031 A1 EP2360031 A1 EP 2360031A1
Authority
EP
European Patent Office
Prior art keywords
roller
appliance
roller system
base
turning lever
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP10001745A
Other languages
German (de)
French (fr)
Other versions
EP2360031B1 (en
Inventor
Wolfgang Kraus
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Electrolux Home Products Corp NV
Original Assignee
Electrolux Home Products Corp NV
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Electrolux Home Products Corp NV filed Critical Electrolux Home Products Corp NV
Priority to EP10001745A priority Critical patent/EP2360031B1/en
Priority to AU2011217496A priority patent/AU2011217496B2/en
Priority to CN201180005867.0A priority patent/CN102712213B/en
Priority to PCT/EP2011/000820 priority patent/WO2011101168A1/en
Priority to US13/577,472 priority patent/US20120305866A1/en
Priority to BR112012020830A priority patent/BR112012020830A2/en
Publication of EP2360031A1 publication Critical patent/EP2360031A1/en
Application granted granted Critical
Publication of EP2360031B1 publication Critical patent/EP2360031B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0002—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture
    • B60B33/0015—Castors in general; Anti-clogging castors assembling to the object, e.g. furniture characterised by adaptations made to castor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0036—Castors in general; Anti-clogging castors characterised by type of wheels
    • B60B33/0039—Single wheels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/0047—Castors in general; Anti-clogging castors characterised by details of the rolling axle
    • B60B33/0049—Castors in general; Anti-clogging castors characterised by details of the rolling axle the rolling axle being horizontal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
    • B60B33/00—Castors in general; Anti-clogging castors
    • B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
    • B60B33/0063—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism no swivelling action, i.e. no real caster
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • D06F39/125—Supporting arrangements for the casing, e.g. rollers or legs

Definitions

  • the present invention relates to a roller system to be installed at a base of a domestic appliance, such as an oven, a dishwasher or the like, in order to enable a comfortable transport of the appliance, as well as to an appliance comprising such a roller system.
  • a domestic appliance such as an oven, a dishwasher or the like
  • roller of this kind systems basically comprise a housing, which is to be fixed at the base of an appliance, and a roller rotatably attached to the housing. Moreover, they can be provided with a mechanism for adjusting the height position of the roller and thus the alignment of the appliance. In one known height adjustment mechanisms the roller is for example drawn along a plane inclined with respect to the horizontal, whereby the height position of the roller is varied.
  • the present invention provides a roller system of the above mentioned kind, said roller system comprising a housing to be fixed at the base, a turning lever pivotingly attached at its one free end to the housing, a roller rotatably attached to the other free end of the turning lever, a tension arm pivotingly attached to the turning lever, and a set screw to be seated at the base and being in thread engagement with a thread provided at the tension arm, wherein the roller system is designed in such a manner that, when installed at the base of a domestic appliance, the actuation of the set screw leads to a pivoting of the turning lever and thus to a height adjustment of the roller.
  • the turning lever and/or the roller is/are preferably at least partially receivable in the housing in order to achieve a roller system necessitating only a few installation space.
  • the set screw is in thread engagement with a speed nut of the tension arm.
  • a speed nut of the tension arm leads to a simple and inexpensive design of the tension arm.
  • Stoppers may be provided for adjusting the maximum and minimum adjustable height of the roller. Accordingly, an excessive pivoting of the roller is prevented.
  • the rotating axis of the roller also forms the pivoting axis of the tension arm. This leads to a reduction of the number of components. Moreover, a good leverage effect is insured when performing the height-adjustment of the roller. Accordingly the force to be applied in order to turn the set screw is low.
  • the length of the tension arm is chosen in such a manner that the roller is positionable close to the back side of the appliance and the set screw is positionable close to the front side of the appliance, such that one can actuate the set screw from the front side in order to adjust the height of the roller arranged close to the back side. Accordingly, a height-adjustment of the roller can be comfortably performed even if the appliance is already positioned in a kitchenette, where the back side of the appliance and thus the roller of the roller system is not accessible.
  • the present invention provides a domestic appliance, such as an oven, a dishwasher or the like, comprising at least one roller system of the above mentioned kind.
  • two roller systems are provided at opposite sides of the base of the appliance in such a manner, that the rollers of the roller system are positioned close to the back side of the appliance and the set screws of the roller systems are positioned close to the front side of the appliance, such that one can actuate the set screws from the front side in order to adjust the heights of the respective rollers positioned close to the back side.
  • FIGs 1 to 3 show a roller system 10 according to an embodiment of the present invention.
  • the roller system 10 is to be installed, as it is shown in figures 2 and 3 , at a base 12 of a domestic appliance, such as an oven, a dishwasher or the like, which is not shown in further detail.
  • a domestic appliance such as an oven, a dishwasher or the like
  • the roller system 10 comprises a housing 14 to be fixed at the base 12, a turning lever 16, which is attached at its one free end to the housing 14 in such a manner that it is pivotable around a pivoting axis 15, a roller 18, which is attached to the other free end of the turning lever 16 in such a manner that it is rotatable around a rotating axis 19, a tension arm 20 attached to the turning lever 16 and also pivotable around the rotating axis 19, and a set screw 22, which is to be seated at the base 12 and being in threat engagement with the thread of a speed nut (not shown) provided at the free end of the tension arm 20.
  • the pivoting axis 16 and the rotating axis 19 extend parallel to each other.
  • upper flaps 24 and lower flaps 26 are formed integrally with the housing 14, each protruding from the housing 14 and formed with an opening 28, 30 in order to receive a fixing screw.
  • the turning lever 16 and the roller 18 are partially receivable in the housing 14.
  • the roller system 10 has a small overall height.
  • the housing 14 of the roller system 10 is attached to the base 12 of the domestic appliance in a position close to the back side of the appliance. Accordingly, also the roller 18 of the roller system 10 is arranged in the backmost part of the appliance.
  • the length of the tension arm 20 is chosen in such a manner that the set screw 22 on the other hand is seated close to the front side of the appliance such that the set screw 22 is accessible from the front side by a user.
  • the actuation of the set screw 22 leads to a drawing or pushing of the tension arm 20 and thus to a pivoting movement of the turning lever 16 along with the roller 18 attached thereto. Accordingly, the height of the roller 18 can be adjusted, as it is indicated by the heights h 1 and h 2 in figures 2 and 3 .
  • the domestic appliance is provided with two roller systems of the kind shown in figures 1 to 3 , which are provided at opposite sides of the base 12 of the appliance.
  • the rollers 18 of the roller systems 10 simplify the transport and maneuvering of the appliance.
  • the above described pivoting mechanism enables a height adjustment of the rollers 18 and thus of the appliance.
  • the appliance may be provided with pedestals at its front side.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Drawers Of Furniture (AREA)

Abstract

Roller system (10) to be installed at a base (12) of a domestic appliance, such as an oven, a dishwasher or the like, said roller system (10) comprising a housing (14) to be fixed at the base (12); a turning lever (16) pivotingly attached at its one free end to the housing (14); a roller (18) rotatably attached to the other free end of the turning lever (16); a tension arm (20) pivotingly attached to the turning lever (16), and a set screw (22) to be seated at the base (12) and being in thread engagement with a thread provided at the tension arm (20), wherein the roller system (10) is designed in such a manner that, when installed at the base (12) of a domestic appliance, the actuation of the set screw (22) leads to a pivoting of the turning lever (16) and thus to a height adjustment of the roller (18).

Description

  • The present invention relates to a roller system to be installed at a base of a domestic appliance, such as an oven, a dishwasher or the like, in order to enable a comfortable transport of the appliance, as well as to an appliance comprising such a roller system.
  • In order to facilitate the transport or the maneuvering of a domestic appliance it is known to provide the base of the appliance with roller systems, in particular at a position close to the back side of the appliance, such that one can tilt the appliance around the roller axis and then easily maneuver the appliance resting on the rollers. Roller of this kind systems basically comprise a housing, which is to be fixed at the base of an appliance, and a roller rotatably attached to the housing. Moreover, they can be provided with a mechanism for adjusting the height position of the roller and thus the alignment of the appliance. In one known height adjustment mechanisms the roller is for example drawn along a plane inclined with respect to the horizontal, whereby the height position of the roller is varied. Accordingly, a height adjustment is possible by moving the roller over the inclined plane and locking the same in place in the desired height-position. One drawback of such a height adjustment mechanism is that it requires a large installation space. Moreover, when positioning such a roller system at a base of an appliance close to its back side, one cannot perform a height adjustment of the rollers from the front side of the appliance. This is of particular disadvantage, when the domestic appliance is to be adjusted in height after being positioned in a kitchenette, where the back side of the appliance and thus the roller system is not accessible.
  • Starting from this prior art it is an object of the present invention to provide a roller system of the above mentioned kind having an alternative, simple and inexpensive construction and necessitating only a small installation space, whereas the roller is height-adjustable in a comfortable manner.
  • In order to solve this object the present invention provides a roller system of the above mentioned kind, said roller system comprising a housing to be fixed at the base, a turning lever pivotingly attached at its one free end to the housing, a roller rotatably attached to the other free end of the turning lever, a tension arm pivotingly attached to the turning lever, and a set screw to be seated at the base and being in thread engagement with a thread provided at the tension arm, wherein the roller system is designed in such a manner that, when installed at the base of a domestic appliance, the actuation of the set screw leads to a pivoting of the turning lever and thus to a height adjustment of the roller.
  • Accordingly an easy structured and inexpensive roller system is provided, which is comfortable to handle with respect to the height adjustment of the roller.
  • The turning lever and/or the roller is/are preferably at least partially receivable in the housing in order to achieve a roller system necessitating only a few installation space.
  • According to one aspect of the present invention the set screw is in thread engagement with a speed nut of the tension arm. The provision of such a speed nut leads to a simple and inexpensive design of the tension arm.
  • Stoppers may be provided for adjusting the maximum and minimum adjustable height of the roller. Accordingly, an excessive pivoting of the roller is prevented.
  • Preferably the rotating axis of the roller also forms the pivoting axis of the tension arm. This leads to a reduction of the number of components. Moreover, a good leverage effect is insured when performing the height-adjustment of the roller. Accordingly the force to be applied in order to turn the set screw is low.
  • Preferably, the length of the tension arm is chosen in such a manner that the roller is positionable close to the back side of the appliance and the set screw is positionable close to the front side of the appliance, such that one can actuate the set screw from the front side in order to adjust the height of the roller arranged close to the back side. Accordingly, a height-adjustment of the roller can be comfortably performed even if the appliance is already positioned in a kitchenette, where the back side of the appliance and thus the roller of the roller system is not accessible.
  • Moreover, the present invention provides a domestic appliance, such as an oven, a dishwasher or the like, comprising at least one roller system of the above mentioned kind.
  • Preferably, two roller systems are provided at opposite sides of the base of the appliance in such a manner, that the rollers of the roller system are positioned close to the back side of the appliance and the set screws of the roller systems are positioned close to the front side of the appliance, such that one can actuate the set screws from the front side in order to adjust the heights of the respective rollers positioned close to the back side.
  • Further features and advantages of the present invention will become apparent by means of the following description of an embodiment of a roller system according to the present invention with respect to the accompanying drawing. In the drawing
    • Figure 1
    is a perspective view of a roller system according to an embodiment of the present invention;
    Figure 2
    is a side view of the roller system according to figure 1 in an assembled state showing the roller system in a first position; and
    Figur 3
    is a side view similar to figure 2 showing the roller system in a second position.
  • Figures 1 to 3 show a roller system 10 according to an embodiment of the present invention. The roller system 10 is to be installed, as it is shown in figures 2 and 3, at a base 12 of a domestic appliance, such as an oven, a dishwasher or the like, which is not shown in further detail. The roller system 10 comprises a housing 14 to be fixed at the base 12, a turning lever 16, which is attached at its one free end to the housing 14 in such a manner that it is pivotable around a pivoting axis 15, a roller 18, which is attached to the other free end of the turning lever 16 in such a manner that it is rotatable around a rotating axis 19, a tension arm 20 attached to the turning lever 16 and also pivotable around the rotating axis 19, and a set screw 22, which is to be seated at the base 12 and being in threat engagement with the thread of a speed nut (not shown) provided at the free end of the tension arm 20. The pivoting axis 16 and the rotating axis 19 extend parallel to each other.
  • In order to fix the housing 14 at the base 12 of a domestic appliance, upper flaps 24 and lower flaps 26 are formed integrally with the housing 14, each protruding from the housing 14 and formed with an opening 28, 30 in order to receive a fixing screw. The turning lever 16 and the roller 18 are partially receivable in the housing 14. Thus, the roller system 10 has a small overall height.
  • In the assembled state, as it is shown in figures 2 and 3, the housing 14 of the roller system 10 is attached to the base 12 of the domestic appliance in a position close to the back side of the appliance. Accordingly, also the roller 18 of the roller system 10 is arranged in the backmost part of the appliance. The length of the tension arm 20 is chosen in such a manner that the set screw 22 on the other hand is seated close to the front side of the appliance such that the set screw 22 is accessible from the front side by a user. The actuation of the set screw 22 leads to a drawing or pushing of the tension arm 20 and thus to a pivoting movement of the turning lever 16 along with the roller 18 attached thereto. Accordingly, the height of the roller 18 can be adjusted, as it is indicated by the heights h1 and h2 in figures 2 and 3.
  • The domestic appliance is provided with two roller systems of the kind shown in figures 1 to 3, which are provided at opposite sides of the base 12 of the appliance. The rollers 18 of the roller systems 10 simplify the transport and maneuvering of the appliance. The above described pivoting mechanism enables a height adjustment of the rollers 18 and thus of the appliance. The appliance may be provided with pedestals at its front side.
    • List of reference numerals
    • 10
    Roller system
    12
    Base
    14
    Housing
    15
    Pivoting axis
    16
    Turning lever
    18
    Roller
    19
    Rotating axis
    20
    Tension arm
    22
    Set screw
    24
    Upper flaps
    26
    Lower flaps
    h1
    Heights
    h2
    Heights

Claims (8)

  1. Roller system (10) to be installed at a base (12) of a domestic appliance, such as an oven, a dishwasher or the like, said roller system (10) comprising
    - a housing (14) to be fixed at the base (12);
    - a turning lever (16) pivotingly attached at its one free end to the housing (14);
    - a roller (18) rotatably attached to the other free end of the turning lever (16);
    - a tension arm (20) pivotingly attached to the turning lever (16), and
    - a set screw (22) to be seated at the base (12) and being in thread engagement with a thread provided at the tension arm (20),
    wherein the roller system (10) is designed in such a manner that, when installed at the base (12) of a domestic appliance, the actuation of the set screw (22) leads to a pivoting of the turning lever (16) and thus to a height adjustment of the roller (18).
  2. Roller system (10) according to claim 1, characterized in that the turning lever (16) and/or the roller (18) is/are at least partially receivable in the housing (14).
  3. Roller system (10) according to one of the foregoing claims, characterized in that the set screw (22) is in thread engagement with a speed nut of the tension arm (20).
  4. Roller system (10) according to one of the foregoing claims, characterized in that stoppers are provided for adjusting the maximum and minimum adjustable height of the roller (18).
  5. Roller system (10) according to one of the foregoing claims, characterized in that the rotating axis (19) of the roller also forms the pivoting axis of the tension arm (20).
  6. Roller system (10) according to one of the foregoing claims, characterized in that the length of the tension arm (20) is chosen in such a manner that the roller (18) is positionable close to the back side of the appliance and the set screw (22) is positionable close to the front side of the appliance, such that one can actuate the set screw (22) from the front side in order to adjust the height of the roller (18) arranged close to the back side.
  7. Domestic appliance, such as an oven, a dishwasher or the like, comprising at least one roller system (10) according to one of the foregoing claims.
  8. Domestic appliance according to claim 7, characterized in that two roller systems (10) are provided on opposite sides of the base (12) of the appliance in such a manner, that the rollers (18) of the roller systems (10) are positioned close to the back side of the appliance and the set screws (22) of the roller systems (10) are positioned closed to the front side of the appliance, such that one can actuate the set screws (22) from the front side in order to adjust the heights of the respective rollers (18) positioned close to the back side.
EP10001745A 2010-02-20 2010-02-20 Roller system Active EP2360031B1 (en)

Priority Applications (6)

Application Number Priority Date Filing Date Title
EP10001745A EP2360031B1 (en) 2010-02-20 2010-02-20 Roller system
AU2011217496A AU2011217496B2 (en) 2010-02-20 2011-02-21 Roller system
CN201180005867.0A CN102712213B (en) 2010-02-20 2011-02-21 Roll system
PCT/EP2011/000820 WO2011101168A1 (en) 2010-02-20 2011-02-21 Roller system
US13/577,472 US20120305866A1 (en) 2010-02-20 2011-02-21 Roller system
BR112012020830A BR112012020830A2 (en) 2010-02-20 2011-02-21 roller system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10001745A EP2360031B1 (en) 2010-02-20 2010-02-20 Roller system

Publications (2)

Publication Number Publication Date
EP2360031A1 true EP2360031A1 (en) 2011-08-24
EP2360031B1 EP2360031B1 (en) 2012-09-19

Family

ID=42226149

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10001745A Active EP2360031B1 (en) 2010-02-20 2010-02-20 Roller system

Country Status (6)

Country Link
US (1) US20120305866A1 (en)
EP (1) EP2360031B1 (en)
CN (1) CN102712213B (en)
AU (1) AU2011217496B2 (en)
BR (1) BR112012020830A2 (en)
WO (1) WO2011101168A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9011226B2 (en) 2013-07-03 2015-04-21 Igt Gaming system and method providing a multiplayer card game with multiple fold options and interrelated bonuses
CN109989230B (en) * 2017-12-29 2021-11-09 青岛海尔洗涤电器有限公司 Lifting device and washing machine with same

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB610497A (en) * 1946-04-08 1948-10-15 Henry James Finer Improvements in or relating to adjustable seats for vehicles and the like
US4789121A (en) * 1987-05-01 1988-12-06 Edward D. Gidseg System for supporting and adjusting refrigerators and the like
US4955569A (en) * 1989-07-18 1990-09-11 Sub-Zero Freezer Company, Inc. Refrigerator leveling system
GB2323276A (en) * 1997-03-18 1998-09-23 Glynwed Consumer & Constructio Height adjustment of appliances
WO2007068665A2 (en) * 2005-12-14 2007-06-21 Arcelik Anonim Sirketi A household appliance

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Publication number Priority date Publication date Assignee Title
US3534430A (en) * 1969-04-03 1970-10-20 Gen Motors Corp Height adjustable caster mechanism
US3827104A (en) * 1973-06-07 1974-08-06 Hahn Brass Ltd Patio door roller
US5347680A (en) * 1993-02-08 1994-09-20 Northrop Corporation Spring retracting caster
US5749550A (en) * 1996-05-28 1998-05-12 General Electric Company Appliance leveling system allowing adjustment of rear supports without access to rear of cabinet
US5971408A (en) * 1997-06-04 1999-10-26 Maytag Corporation Vertically adjustable wheel assembly
MXPA04000394A (en) * 2001-07-16 2004-10-27 Maytag Corp System and method for leveling an appliance.
US6871379B2 (en) * 2002-10-01 2005-03-29 Wolf Appliance Company, Llc Method and apparatus for appliance installation and leveling
SE0501685L (en) * 2005-07-15 2007-01-16 Electrolux Home Prod Corp Adjustable wheels
US8012052B2 (en) * 2006-02-28 2011-09-06 Shimano, Inc. Low profile rear derailleur with cable guide
CN101209806B (en) * 2007-12-21 2011-08-10 上海微电子装备有限公司 Lifting type handcart

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB610497A (en) * 1946-04-08 1948-10-15 Henry James Finer Improvements in or relating to adjustable seats for vehicles and the like
US4789121A (en) * 1987-05-01 1988-12-06 Edward D. Gidseg System for supporting and adjusting refrigerators and the like
US4955569A (en) * 1989-07-18 1990-09-11 Sub-Zero Freezer Company, Inc. Refrigerator leveling system
GB2323276A (en) * 1997-03-18 1998-09-23 Glynwed Consumer & Constructio Height adjustment of appliances
WO2007068665A2 (en) * 2005-12-14 2007-06-21 Arcelik Anonim Sirketi A household appliance

Also Published As

Publication number Publication date
BR112012020830A2 (en) 2016-06-28
AU2011217496B2 (en) 2015-01-22
US20120305866A1 (en) 2012-12-06
CN102712213A (en) 2012-10-03
CN102712213B (en) 2015-08-05
WO2011101168A1 (en) 2011-08-25
AU2011217496A1 (en) 2012-09-06
EP2360031B1 (en) 2012-09-19

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